Aesculus glabra Willd.
Coefficient of Conservatism: 5
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt Tree

Deciduous forests and forest edges, swamps, and river-bank thickets.

Southern Michigan is at the northern edge of the range of this species, which, however, is hardy throughout the state. The Upper Peninsula record is from seedlings spreading from planted trees originating from Illinois.

A very few specimens from Berrien, Oakland, and Washtenaw Cos. have sparse stipitate glands on the pedicels, interpreted as being suggestiive of introgression with Aesculus flava (and some specimens thus determined as A. flava × A. glabra). But any influence of A. flava is presumably negligible; such specimens otherwise seeming like typcal A. glabra in morphology and ecology. They are mapped as A. glabra.

Aesculus glabra is the earliest native tree to leaf out, and may bloom as early as April. 


Berrien County
Cass County
Clinton County
Eaton County
Hillsdale County
Jackson County
Kalamazoo County
Lenawee County
Oakland County
Ontonagon County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. May 12, 2021.